vulnerability CVE-2013-0310

Linux kernel: denial of service via IPOPT_CIPSO

Synthesis of the vulnerability

A local attacker can create a socket with the CIPSO IP option, in order to stop the system.Impacted products:Linux, RHEL.Severity: 1/4.Creation date: 20/02/2013.Identifiers: BID-58052, CVE-2013-0310, RHSA-2013:0496-02, VIGILANCE-VUL-12440.

Description of the vulnerability

The CIPSO (Commercial Internet Protocol Security Option) IP option is used to define the sensitivity level (Multi Level Security) of a network message.

The Linux kernel implements this option. However, this implementation is invalid, and triggers a NULL pointer dereference.